Origin plots thermogravimetric TG and differential thermogravimetric DTG curves

One 、 Import data

Two 、 to Origin in

3、 ... and 、 Thermogravimetry TG curve

temp Abscissa 、mass Vertical coordinates
Draw line chart

Change the format slightly
Bold font ,Times New Roman
The curve width is set to 2
The numerical format of horizontal and vertical coordinates is Times New Roman
Change the starting and ending positions of the horizontal and vertical coordinates according to the actual situation

Four 、 Differential thermogravimetry DTG curve

Click curve , Then choose analysis – mathematics – differential – Open the dialog box

DTG It's just TG First derivative of , Click ok

Get the result of finding the first derivative

Yes temp Draw a line graph with the first derivative result

obtain DTG Images

Smooth and optimize the curve
Click curve , analysis – signal processing – smooth

You can preview the effect , Click OK after selecting

The data after overall smoothing comes out

Yes temp Map the data after smoothing


Click curve , Set the format

Bold font ,Times New Roman
The curve width is set to 2
The numerical format of horizontal and vertical coordinates is Times New Roman
Change the starting and ending positions of the horizontal and vertical coordinates according to the actual situation

5、 ... and 、TG and DTG Double axis drawing

choice TG After the smooth DTG data , Click double Y Axis diagram

Optimize the generated image

Bold font ,Times New Roman
The curve width is set to 1
The numerical format of horizontal and vertical coordinates is Times New Roman
Change the starting and ending positions of the horizontal and vertical coordinates according to the actual situation